<?php

class UploadModel extends CI_Model{

	public function __construct() {
		parent::__construct();
	}

	public function uploadFile($userName,$chunk,$chunks,$fileName) {
		/**
		 * upload.php
		 *
		 * Copyright 2009, Moxiecode Systems AB
		 * Released under GPL License.
		 *
		 * License: http://www.plupload.com/license
		 * Contributing: http://www.plupload.com/contributing
		 */
		
		// HTTP headers for no cache etc
		header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
	    header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
		header("Cache-Control: no-store, no-cache, must-revalidate");
		header("Cache-Control: post-check=0, pre-check=0", false);
		header("Pragma: no-cache");

		// Settings
		$targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";
		$targetDir = $_SERVER['DOCUMENT_ROOT'].'/userPics/'.$userName;
		
		$cleanupTargetDir = true; // Remove old files
		$maxFileAge = 5 * 3600; // Temp file age in seconds

		// 5 minutes execution time
		@set_time_limit(5 * 60);

		// Uncomment this one to fake upload time
		// usleep(5000);

		// Get parameters

		// Clean the fileName for security reasons
		$fileName = preg_replace('/[^\w\._]+/', '_', $fileName);

		// Make sure the fileName is unique but only if chunking is disabled
		if ($chunks < 2 && file_exists($targetDir . DIRECTORY_SEPARATOR . $fileName)) {
			$ext = strrpos($fileName, '.');
			$fileName_a = substr($fileName, 0, $ext);
			$fileName_b = substr($fileName, $ext);

			$count = 1;
			while (file_exists($targetDir . DIRECTORY_SEPARATOR . $fileName_a . '_' . $count . $fileName_b))
			$count++;

			$fileName = $fileName_a . '_' . $count . $fileName_b;
		}

		$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
		// Create target dir
		if (!file_exists($targetDir))
		@mkdir($targetDir);

		// Remove old temp files
		if ($cleanupTargetDir && is_dir($targetDir) && ($dir = opendir($targetDir))) {
			while (($file = readdir($dir)) !== false) {
				$tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;

				// Remove temp file if it is older than the max age and is not the current file
				if (preg_match('/\.part$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge) && ($tmpfilePath != "{$filePath}.part")) {
					@unlink($tmpfilePath);
				}
			}

			closedir($dir);
		} else {
			echo ('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
			return false;
		}

		// Look for the content type header
		if (isset($_SERVER["HTTP_CONTENT_TYPE"]))
		$contentType = $_SERVER["HTTP_CONTENT_TYPE"];

		if (isset($_SERVER["CONTENT_TYPE"]))
		$contentType = $_SERVER["CONTENT_TYPE"];

		// Handle non multipart uploads older WebKit versions didn't support multipart in HTML5
		if (strpos($contentType, "multipart") !== false) {
			if (isset($_FILES['file']['tmp_name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {
				// Open temp file
				$out = fopen("{$filePath}.part", $chunk == 0 ? "wb" : "ab");
				if ($out) {
					// Read binary input stream and append it to temp file
					$in = fopen($_FILES['file']['tmp_name'], "rb");

					if ($in) {
						while ($buff = fread($in, 4096))
						fwrite($out, $buff);
					} else {
						echo('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
						return false;
					}
					fclose($in);
					fclose($out);
					@unlink($_FILES['file']['tmp_name']);
				} else {
					echo('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
					return false;
				}
			} else {
				echo('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
				return false;
			}
		} else {
			// Open temp file
			$out = fopen("{$filePath}.part", $chunk == 0 ? "wb" : "ab");
			if ($out) {
				// Read binary input stream and append it to temp file
				$in = fopen("php://input", "rb");

				if ($in) {
					while ($buff = fread($in, 4096))
					fwrite($out, $buff);
				} else {
					echo ('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
					return false;
				}
				fclose($in);
				fclose($out);
			} else {
				echo ('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
				return false;
			}
		}

		
		// Check if file has been uploaded
		if (!$chunks || $chunk == $chunks - 1) {
			// Strip the temp .part suffix off
			rename("{$filePath}.part", $filePath);
		}

		echo ('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
		
		return true;

	}
	
	public function saveImages($uploadedFilesArr,$userName,$album_name) {
		$data = array();
		foreach ($uploadedFilesArr as $file_name) {
			array_push($data, array('user_name' => $userName,'image_name' => $file_name,'album_name' => $album_name));
		}
		return $this->db->insert_batch('pics',$data);
	}


}
?>